We would like to change the position of photos, documents so they are in chronological date.
Carole, We understand you would like to order memories in your gallery in a way that fits your needs. Great! Here is an article from our Help Center that gives instructions and various ways to do it.
There are filters to use in the main gallery but when memories are added to albums they can then be sorted by dragging and dropping.
Hope this meets your needs. Best to you on your family history journey!